It is important to understand that it is not put back on the mailbox. The only simplification is that stopping a parent Actor will also recursively stop all the child Actors that this parent has created. So all messages on that mailbox will be there as well. This means that you can serialize it, send it over the wire and use it on a remote host and it will still be representing the same Actor on the original news

If are building a web service similar to ours that involves aggregating data from various sources, then consider using the Actor per-request model to promote the "tell, don't ask" pattern. Here the code: import spray.http.MediaTypes._ val EdnType = register( MediaType.custom( mainType = "application", subType = "edn", compressible = true, binary = false, fileExtensions = Seq("edn"))) val pipeline = ( addHeader("Accept", "application/json") Need a better layout, so that blank space can be utilized How to increment line counter for line beginning replacements by AWK/...? at scala.sys.package$.error(package.scala:27) at activator.UIMain.checkAlive$1(UIMain.scala:164) at activator.UIMain.waitForServerStartup(UIMain.scala:169) at activator.UIMain.run(UIMain.scala:115) at activator.UIMain.run(UIMain.scala:87) at xsbt.boot.Launch$$anonfun$run$1.apply(Launch.scala:109) at xsbt.boot.Launch$.withContextLoader(Launch.scala:129) at xsbt.boot.Launch$.run(Launch.scala:109) at xsbt.boot.Launch$$anonfun$apply$1.apply(Launch.scala:36) at xsbt.boot.Launch$.launch(Launch.scala:117) at xsbt.boot.Launch$.apply(Launch.scala:19) at xsbt.boot.Boot$.runImpl(Boot.scala:44) at xsbt.boot.Boot$.main(Boot.scala:20) at xsbt.boot.Boot.main(Boot.scala) Error during sbt http://kamon.io/integrations/akka/ask-pattern-timeout-warning/

Akka.pattern.asktimeoutexception Ask Timed Out On Actor Akka

This hook is guaranteed to run after message queuing has been disabled for this actor, i.e. class MyActor extends Actor { val child: ActorRef = ??? There are cases where you certainly want to compose Futures and use the callback functions. The Stash trait’s implementation of preRestart will call unstashAll(), which is usually the desired behavior.

On Thu, Feb 26, 2015 at 3:53 AM, Mikhail Golubtsov Sign up for free to join this conversation on GitHub. Ask Timed Out On Akka The target actor can use this to reply to the original sender, by using sender() !

The ask pattern allowed us to immediately get a handle on each API response and aggregate them via Future composition. Akka Asktimeoutexception So always prefer tell for performance, and only ask if you must. Note It is important to note that Actors do not stop automatically when no longer referenced, every Actor that is created must also explicitly be destroyed. Log in to Reply dasmb on December 19, 2013 at 3:31 pm said: It's enterprise, no unbounded queues.

When using the heavyweight mode Kamon creates a new Exception and stores its stack trace during the lifetime of the ask, and that will consume some additional CPU and memory. Akka.pattern.asktimeoutexception Spark Job Server On Apr 8, 2016, at 12:55 PM, Tim Kral [email protected] wrote: For what it's worth, I finally solved this by turning on host networking for my docker container. send a message asynchronously and return immediately. The actual termination of the actor is performed asynchronously, i.e.

Akka Asktimeoutexception

The constructor is invoked for every incarnation of the actor, therefore the internals of the actor can always assume that proper initialization happened. https://groups.google.com/d/topic/spray-user/ZjuskdVVprA Please note that this does not mean that delivery of that reply is guaranteed, it still is a normal message. Akka.pattern.asktimeoutexception Ask Timed Out On Actor Akka This also avoids the pitfalls associated with using the Props.apply(...) method which takes a by-name argument, since within a companion object the given code block will not retain a reference to Akka.pattern.asktimeoutexception Spark Otherwise without reproduction steps it's not really clear.

Killing an Actor You can kill an actor by sending a Kill message. http://icicit.org/timed-out/psn-timed-out-psp.html What happens to the mailbox If an exception is thrown while a message is being processed, nothing happens to the mailbox. If a path element equals .., the look-up will take a step “up” towards the supervisor of the currently traversed actor, otherwise it will step “down” to the named child. Improved Design with tell To better deal with these problems, we decided to remove asks from our design and use tell instead. Akka.pattern.asktimeoutexception Spray

If the message is available, then that message’s sender is also accessible in the usual way (i.e. http://stackoverflow.com/questions/25021848/playframework-akka-tell Log in to Reply natalinobusa on October 11, 2014 at 9:53 pm said: An ask patter implements a lean actor. One can recursively apply the same principles for the children, ensuring that their preStart() method is called only at the creation of their refs.

This is a common pattern in the spray docs that completes the RequestContext asynchronously so our routing Actor can quickly move on to handling the next request.

Can this be closed? Already have an account? Give("thing") } } trait ConsumerBehavior { this: Actor with ActorLogging => val consumerBehavior: Receive = { case ref: ActorRef => ref ! This message is handled specially by the actors which are traversed in the sense that if a concrete name lookup fails (i.e.

I tailed the job-server logs and it is still executing the job well after we get the error. The best way to handle the response is to send the result of the future as a message to the actor and than handing this result the same way as you This gives the best concurrency and scalability characteristics. http://icicit.org/timed-out/psp-timed-out-fix.html which dispatcher to use, see more below).

The name parameter is optional, but you should preferably name your actors, since that is used in log messages and for identifying actors. Termination of an actor proceeds in two steps: first the actor suspends its mailbox processing and sends a stop command to all its children, then it keeps processing the internal termination Actors are automatically started asynchronously when created. Performance We considered whether using the Actor per-request model was going to be a performance bottleneck.

Creating Actors Note Since Akka enforces parental supervision every actor is supervised and (potentially) the supervisor of its children, it is advisable that you familiarize yourself with Actor Systems and Supervision max-jobs-per-context = 4 # Max # of jobs to run at the same time } } akka { Use SLF4J/logback for deployed environment logging loggers = ["akka.event.slf4j.Slf4jLogger"] loglevel="DEBUG" log-config-on-start = on There were two use-cases for these methods: passing constructor arguments to the actor—which is solved by the newly introduced Props.apply(clazz,args) method above or the recommended practice below—and creating actors “on the See What Supervision Means for more information.